Loom.



No. 646,903. Patented Apr. 3, I900. H. I. HABRIMAN. LO0M.

(Application filed Feb. '7, 1900.) w (No Model.) 5 sheets-Shut I.

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Paten ted Apr. 3, 1900. H. I. HABRIMAN. LOOM.

(Applicatiun filed. Feb. 7 1900.; (No Model.)

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Patented Apr. 3, I900. H. L'HARRIMAN;

LOUM.

(Application filed Feb. 7, 1900.) (No Model.) 5 Sheets-Sheqt 3.

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Patented Apr. 3; I900.

H. I. HARRIMAN.

LOOM.

(Application filed Feb. 7, 1900.)

(No Model.)

5 Sheets-Shut 5,

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4% 5y Ma HENRY I. I'IARRIMAN,

on NEW. YORK, N. ,Y.

LOOM.

SPECIFICATION forming part of Letters Patent No'. 646,903, dated April3, 1900.

Application filed February 7, 1900. Serial No. 4,300. (No model.)

T0 ctZZ whom it may concern/.-

Be it known thatI, HENRY I. HARRIMAN, a citizen of the United States,residing at New York, in the county of New York, State of New York, haveinvented a certain new and useful Improvement in Looms, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

Looms have heretofore been equipped With detector devices of differentkinds which have been constructed and arranged to bring about thestoppage of a loom on the occurrence of a predetermined emergency orfault in the working thereof. The aim in general has been to occasionprompt automatic stoppage of the loom after the discovery of suchemergency or fault without waiting for anyintervention on the part ofthe attendant weaver. For example, it was proposed very early in thedevelopment of the power-loom to provide the latter with automaticstop-motion mechanism arranged to act upon breakage or failure of one ormore warp-threads, and warp stop-motions for looms have been well knownin the art for many years, many forms thereof having been from time totime contrived and patented.

An objection is raised in some quarters against the use of warpstop-motions in looms on the ground that they occasion an unnecessaryloss of productive capacity, the reduction in the output of a loom dueto the stoppages occasioned by the warp stop-motion thereof beingregarded as more serious than the disadvantages which follow fromallowing the loom to continue to weave with one or more brokenwarp-threads until the fact is observed by the weaver. It is wellrecognized that absence of a single warp-thread for a short distance isnot a detriment to many kinds of woven fabrics. It happens frequently inpractice that a loom is stopped by the action of its warp stop-motionand stands for some little time idle while the attendant weaver isoccupied at some other loom. This time is lost for weaving purposes,while if no warp stop-motion were employed the loom might still continueto run and weave cloth, the defect due to the breakage of a warp threador threads being remedied in the loom at the convenience of the weaveror subsequent to the removal of the woven web from the loom.

My invention has for its aim in general to provide means forautomatically detecting the occurrence of a predetermined emergency orfault in the working of a loom and apprising the weaver of suchoccurrence bya signal device without, however, actually causing theimmediate stoppage of the loom and in connection therewith to providemeans for enabling the loom to be stopped by the aid of appliances whichshall be normally inoperable for occasioning stoppage, but which whenthe detector devices ascertain the occurrence of such emergency or faultshall thereby be rendered operable at the will of the weaver to bringabout the stoppage of the loom. The princlple in view is this that theweaver shall be apprised promptly of the occurrence aforesaid by thesignal device. This will enable him to take the steps which arenecessary to be taken for supplying the needs of the loom or remedyingthe fault and in many cases without arresting the loom. In many casesthe emergencies or faults which are to be provided for will be of acharacter which may be attended to Without interfering with the regularworking of the loom. It will enable him also at his discretion, andespecially if he is occupied elsewhere, to permit the loom to run onundisturbed by him for the time being. Thus while he will have been madeaware of the fact that, say, a warp-thread is broken the loom willcontinue to weave cloth without unprofitable or premature interruptionof its work.

My invention has for its aim, further, to enable the group of loomswhich are under the charge of one weaverto be connected in a series bymeans of master connections extending throughout such series, which willenable the weaver, wherever he may happen to be located in the series ata given moment, to

occasion at will the stoppage of the particu- IOO are carried intoeffect will now be described with reference to the accompanyingdrawings, in which Figure 1 shows in end elevation, and Fig. 2 in rearelevation, certain portions of a loom and certain parts and appliancesinvolved in the invention. Fig. 3 shows in side or end elevation, andFig. 4 in rear elevation, certain portions of the warp-detector'devicesto which reference is made hereinafter. Fig. 5 is a view on the order ofa diagram, illustrating two looms and certain connections which pertainto the invention. Fig. 6 is a diagram showing the electrical connectionsof a series of looms.

In the said drawings, 1 designates the loomframe, 2 is the arch thereof,and 3 is the breastbeam.

At lis indicated the crank-shaft of the loom, and at 5 the cam-shaft.

6 designates part of one of the swords of the lay, and 7 the lay-beam.

The warp-detector devices employed in the illustrated embodiment of theinvention include the so-called drop-wires, heddles, or detectors 8 8,(see more especially Figs. 3 and 4,) which are located herein betweenthe position of the harness and that of the whip-roll. (Both not shown.See Fig. 1.) The said detectors are shown arranged in two ranks orseries, Fig. 3, and formed with warpeyes 81 81 and also with elongatedslots 82 82, the latter enabling them to be strung upon supporting andguide bars 83 83. The said guide-bars are supported by being applied attheir opposite ends to stands 84, which are bolted to brackets 85, thelatter being in turn bolted to the loom-frame.

86 designates a warp-rest arranged adjacent the detectors 8 8, betweenthe latter and the harness, and designed to sustain at predeterminedheights the intact warp-threads 110 and the detectors which are appliedthereto. The said warp-restis supported at its ends in sockets 87, whichare affixed to the stands 84 by bolts 88. The said bolts are passedthrough vertical slots 89in the said stands, the slots permitting thewarp-rest to be adjusted to the required height. 9 9 are backing-barsarranged at one side of the two series or ranks of detectors and servingas abutments which hold a dropped detector against the thrust of thefeeler or Vibrator. Only a single pair of backing-bars is employed atone side of the two series or ranks of detectors in the illustrated formof warp-detector devices, the said pair coacting with both of the saidseries or ranks. 10 designates the feeler or vibrator. It is carried byarms 101, depending from a rock-shaft 102, which is mounted in bearingson the stands 84.

The usual movements are communicated to the vibrator 10 by means of anarm 103, made fast upon rock-shaft 102, adjustable link or connection104, a bell-crank or other lever 105, and a cam or eccentric 106 uponcam-shaft 5. (See Figs. 1 and 2.) The cani or eccentric 106 by actingagainst the bellcrank 105 causes movement to be transmitted to thevibrator 10 in a direction away from the detectors 8 8, while thevibrator is returned toward the detectors by a yielding thread 110, Fig.3, or by the undue slackening of such warp-thread the vibrator willthereby be arrested. This arrest will result in the tripping of thesignal, &c., as presently will be described. The link 101 comprises endportions which are jointed'to the arm 103 and bell-crank 105,respectively, and an intermediate rod-like portion which is inscrew-threaded engagement with the said end portions. Rotation of thesaid intermediate portion serves to increase or diminish the length ofthe entire link and to vary the position in space of the path describedby the vibrator. Thereby the approach of the forward edge of thevibrator relatively to the backing-bars 9 9 may be adjusted.

For the purpose of apprising the weaver of the fact that a warp-threadhas become broken, exhausted, or unduly slack I place under operativecontrol of the vibrator 10 a signaling device. This last may vary moreor less in character. Preferably in practice I provide signals which areboth audible and visible. Thus in the present instance I have shown anarm 11, carrying a bell 12, which is of a character to be sounded bymovement suddenly communicated to the said arm. The arm 11 is attachedto a rock-shaft 111, which last is fitted to a bearing formed orprovided on a standard 13, extending upward from the arch 2. Therock-shaft 111 is fur nished with a second arm 112, normally oc cupyinga snbstantially-horizontal position. Through a hole in the outer portionof the said arm 112 passes loosely a rod 113, having a nut or collar 114thereon above the arm. The lower end of rod 113 is jointed to thehorizontal arm of a bell-crank 115, which last is pivoted at 116 and haspivoted to its vertical arm a trip-pawl 117. One end of said trip-pawlhas a hole therethrough receiving the lower end of a rod 118, whichdepends from a pivot 119, connecting it to the substantially-horizontalarm of the bell-crank 105. A nut 120, adjustable upon the threaded lowerend of rod 118, bears on the trip-pawl117. The other end of trip-pawl117 slightly preponderates in weight and is hooked, as shown in Fig. 1.This end overhangs a tappet 121 on cam-shaft 5, having a tooth fitted toengage with the said hooked end of trip-pawl117. From what has been setforth it will be clear,

with the aid of the drawings, that when cam or eccentric 106 movesbell-crank 105 to swing vibrator 10 away from the detectors 8 8 thepressure of nut 120 on the tail of trip-pawl 117 will be relieved,allowing the hooked rear end of the said trip-pawl to descend within thepath of rotation of the tooth of tappet 121. As the nose 107 ofbell-crank 105 follows the surface of cam or eccentric 106 in thereturning movement of the said bellcrank and vibrator, the pressure ofthe nut 120 upon the tail end of trip-pawl 117 will hooked end of'thetrip-pawl117.

raise the hooked end of the latter out of the range of the tooth of thesaid tappet. When, however, the vibrator is arrested in its return by adescended detector, the hooked end of trip-pawl 117 is permitted toremain in position to be engaged by the tooth of tappet 121, and as thesaid tooth engages therewith it operates to rock the bell-crank 115 uponits pivot 116, thereby moving rod 113 lengthwise and turning rock-shaft111 so as to swing arm 11, thereby moving said arm so as to indicate forthe benefit of the weaver and also so as to cause the bell 12 to sound.In the continued rotation of the tappet 121 the tooth thereof willbecome disengaged from the The signaling devices will be actuated ineach rotation of the said tappet until the weaver has responded andrestored things to their proper working condition.

For the purpose of preventing a dropped detector from becoming injuredby repeated strokes of the vibrator 10 against the same a vibrator-stopis employed which is arranged and operated to interrupt the action ofthe vibrator against the dropped detector after it has operated inconnection with the latter to bring the signaling devices into play. Ihave shown herein a stop-lever 14, Figs. 3

4, pivoted at 141 upon bracket v85, it having an upturned inner end andaweighted outer end 142. Normally the said vibrator-stop is engaged by astop-catch 143, which is pivoted to bracket at 144, Fig. 4, the saidstopcatch serving to hold the weighted end of the vibrator-stop upraisedand the upturned end depressed out of the path of a portion of thevibrator 10. Upon rod 113 is made fast a finger 146. Then the said rodis moved downward to operate the signaling devices, as describedhereinbefore, as a result of the encounter of the feeler or vibrator 10with a detector which has assumed its detecting position, the saidfinger 146 acts against the tail of the stopcatch 143, moving the latterto free the vibrator-stop 14, whereupon the latter moves so as to placeits upturned inner end in the path of movement of vibrator 10,interrupting thus the action of the feeler or vibrator against thedetector which has moved into detecting position.

A weaver customarily is required to attend a number of looms arranged inone or more rows. His duties require him to he on the move aconsiderable portion of the time and to pass from place to place in theseries of looms under his charge. In order to attract his attentionwherever he may belocated at a given moment, I arrange so that wheneverthe predetermined emergency or fault occurs in any given loom signalingdevices shall be operated throughout a group of looms con.- taining suchloom. This may conveniently be eifected by connecting together signalingdevices pertaining to all the looms in the said series, or it may be tothose of a group in each row, so as to be operated in unison wheneverthe detector devices act in any loom which may pertain to the series orgroup. The connection may be established by means of a rod 15, Figs. 1,2, and 5, extending lengthwise of the row, and a fork 16 or the like,with which arm 11 is provided, the fork of each arm engaging withprojections or collars 161 161 on the said rod. Whenever the detectordevices in any given loom ascertain the occurrence of the predeterminedfault or emergency, they are enabled to act to bring signaling devicesinto operation in all of the looms throughout which the connectionextends.

For the purpose of indicating to the eye of' 1131 will enable him toascertain by quick observation the particular loom in which suchemergency or fault has occurred.

The stopping or unshipping appliances of the respective looms are to beplaced under the control of the weaver in order that stopping orunshipping may be effected by him at will. In order to represent theseappliances, I have shown at 17, Fig. 1, the ordinary kn ocking-off leverof a loom in transverse section.

At 171 is shown a striker which is carried by a lay, and at 172 is showna movably-mounted bunter. The said bunter is herein in the form of abolt fitting a hole made through an armature-lever 173, which is mountedpivotally at 174.

At 19 is intended to be represented an electromagnet, and at 175 176 thewires which are connected with the said electromagnet. Normally thearmature-lever will occupy a position in which it will hold the hunter172 out of the path of the striker 171. When, however,the electromagnetis eXcited,it will swing the armature-lever 173 to place the hunter inthe said path, and consequently in the ensuing advance of the strikerwith the lay the bunter will be struck and borne against theknocking-off lever 17 to operate the latter to occasion the unshippingof the loom.

The wires 175 176 form a portion of an electric circuit which isintended to be utilized in effecting unshipping or stoppage of the loomat the will of the weaver after the latter has been apprised of theoccurrence of the predetermined fault or emergency. The features of thiselectric circuit are shown most fully in Figs. 5 and 6. The said circuitis provided with a switch which normally is open, inasmuch as it isintended that under ordinary conditions such circuit shall be incapableof being used to effect unshipping or stoppage. The said switch iscombined with the detector devices of the loom in order that the samemay be closed automatically on such occurence in order to place theunshipping devices in proper train to be operated in case the weavershall see fit to operate the same. Thus the wire 176 is in electricalconnection with a wire 177, leading from one pole of a source ofelectrical energy, while the wire 175 is connected to an insulatedcontact-piece 178. A switchlever is shown at 179, it being connected bya wire 180 with a wire 181.

182 designates a spring which is provided on switch-lever 179 to makecontact with fixed contact-piece 178. For the purpose of closing theswitch automatically on the occurrence of a fault in the warp rod 113 isfurnished with a stop or collar 183, that is arranged to engage withswitch-lever 17 9. Thereby when rod 113 is moved in the manner which hasbeen described already stop or collar 183 acts against switch-lever 179to cause spring 182 to press on fixed contact piece 178. The switchthereby is closed and the unshipping devices are placed in train andmade ready for being brought into play.

A push-button for use by the weaver is shown on the loom at 184. Thispush-button is connected by wires 185 186 with the wire 181, aforesaid,and with a wire 187, leading from the other pole of a souce ofelectrical energy. The switch having been closed, as described, if nowthe weaver presses upon the push-button 184 the circuit will becompleted and electromagnet 19 will be caused to bring about theunshipping of the loom. So long as the switch remains open the weavercannot close the circuit and bring the said electromagnet into playthrough the devices which have been described, and consequently cannotbring about the unshipping of the loom through the instrumentality ofsuch devices. The switch-lever 179 will be replaced by the weaver in thenormal or open position thereof which is represented in Fig. 2, or, ifdesired,the preponderance of its weighted end may be such as to occasionautomatic return of the switch-lever to the said open position.

I contemplate combining the whole number of looms under charge of aweaver or any pre ferred proportionate part thereof into a series bymeans of the wiring thereof, the wires 177,

181, and 187 being extended throughout such series of looms, theelectrical connections pertaining to the respective looms beingconnected therewith in multiple. This will enable the weaver, bypressure upon the push-button of the loom nearest him at any givenmoment, to bring about the unshipping of any particular loom of theseries in which the switch may have been closed by the action of thedetector devices or otherwise.

From the diagram given in Fig. 6, in which the electromagnets of apartial series of four looms are indicated at 19 19, &c., it will beclear that the unshipping devices of the respective looms are comprisedin branch circuits which are connected in multiple with the main circuit187 177, the. In this diagram the places of the switches are indicatedat 00 at in the respective branch circuits. It will be apparent thatunless one of such switches is closed at the time when a push-button 184is pressed upon none of the electromagnets can be brought into action;also, that in case the switch of any one 'of the branch circuits isclosed pressure upon any one of the pushbuttons will result in bringinginto operation the electromagnet embraced in such branch circuit and inthe unshipping of the particular loom to which such branch circuitpertains.

While I have been careful to describe fully the preferred manner andmeans of carrying my invention into effect, I wish it to be understoodthat I do not restrict myself to the specific mode of application orfeatures, construction, and arrangement which have been presentedherein, save where indicated otherwise in the following claims.

I claim as my invention 1. In a loom, in combination, detector devicesto ascertain the occurrence of a predetermined fault or emergency in theworking of the loom, unshipping appliances normally remaining ininoperable relations and established in operable relations by thedetector devices on said occurrence, without stoppage of the loom, andmaster connections operable at the will of the weaver to cause thestoppage of the loom to be effectuated through the said appliances afterthe detector devices have rendered the same operable.

2. In a loom, in combination, warp-detector devices, unshippingappliances normally remaining in inoperable relations and established inoperable relations by the action of the warp-detector devices, withoutstoppage of the loom, and master connections operable at the will of theweaver to cause the stoppage of the loom to be effectuated through thesaid unshipping appliances after the warp-detector devices have renderedthe same operable.

3. In combination, a series of looms, each loom provided with detectordevices to,ascertain the occurrence of a predetermined fault oremergency in the working thereof and with a signaling device controlledby such detector devices to apprise the weaver of such occurrence,unshipping appliances in each loom normally remaining in inoperablerelations and controlled by the corresponding detector devices toestablish operable relations on saidoccurrence, Without effectingstoppage of the loom, and master connections for the unshippingappliances of the series of looms, operating through the said appliancesto effectuate stoppage of the particular loom in which the saidoccurrence has been detected.

4:- In a loom, in combination, detector devices to ascertain theoccurrence of a predetermined fault or emergency in the working of theloom, a signaling device under control of the said detector devices toapprise the weaver of such occurrence, unshipping appliances normallyremaining in inoperable relations and controlled by the detector devicesto establish operable relations on said occurrence, Without effectingstoppage of the loom, and master connections operable at the will of theweaver and acting to cause the stoppage of the loom to be effectuatedthrough the said unshipping appliances after the latter have beenrendered operable by the detector devices.

5. In a loom, in combination, warp-detector devices, a signaling deviceunder control of the said warp-detector devices to apprise the weaver ofthe occurrence of a fault in the warp, unshipping appliances normallyremaining in inoperable relations and established in operable relationsby the action of the warp-detector devices, without stoppage of theloom, and master connections operable at the will of the Weaver to causethe stoppage of the loom to be effectuated through the said unshippin gappliances after the warpdetector devices have rendered the same0perable.

6. In combination, a series of looms, each loom provided withwarp-detector devices, and with a signaling device controlled thereby toapprise the weaver of a fault in the warp, unshipping appliances in eachloom normally remaining in inoperable relations and controlled by thecorresponding warp-detector devices to establish operable relations onsuch occurrence, without effecting stoppage of the loom, and masterconnections for the unshipping appliances of the series of looms,operating through the said appliances to effectuate stoppage of theparticular loom in which the said occurrence has been detected.

7. In combination, a series of looms, detector devices in connectionwith each thereof to ascertain the occurrence of a predetermined faultor emergency in the Working of the loom, signaling devices along thesaid series to apprise the Weaver of such occurrence, and deviceswhereby the said detector devices in each of the respective loomsareenabled to operate the series of signaling devices.

8, In combination, a series of looms, each provided with a signalingdevice to apprise ing devices, whereby the latter are operatedthroughout the series of looms on detection of a fault in thewarp-threads of any one of the looms.

10. In combination, a series of looms, each having unshipping appliancesand detector devices, and devices under control of said detector deviceswhereby on detection of a fault in a particular loom the latter may beunshipped at the will of the weaver from any one of the others.

11. In combination, a series of looms, each having unshipping appliancesand warp-dc tector devices, and means under the control of saidwarp-detector devices whereby on detection of a fault in thewarp-threadsin a particular loom the latter may be unshipped at the willof the weaver from any one of the others.

12. In combination, a series of looms, each having unshippingappliances, asignalingdevice to apprise the weaver, and warp-detectordevices in operative control of the said signaling device, and meansunder the control of said warp-detector devices whereby on detection ofa fault in the warp-threads in a particular loom the latter may beunshipped.

at the will of the Weaver from any one of the others.

13. In combination, a series of looms, each provided with a signal andwith detector devices operating collectively the signals of the seriesof looms, and each provided also with an individual signal separatelyoperated by the detector devices of the particular loom.

lei. In combination, a series of looms, each provided with a signal andwith warp-detector devices operating collectively the signals of theseries of looms on the discovery of a fault in the warp-threads, andeach provided also with an individual signal separately operated by thesaid detector devices of the particular loom:

15. In combination, a series of looms, each having detector devices andunshipping appliances, the latter includingan electromagnet having inconnection therewith a currentcontroller under operative control of thesaid detector devices, a normally open or broken electric circuit havingthe series of electromagnets arranged in multiple with referencethereto, and a manually-operable circuit-controller for said circuit.

16. In combination, a series of looms, each having detector devices andunshipping appliances, the latter including an electromagnet having inconnection therewith a currentcontroller under operative control of thesaid detector devices, a normally open or broken electric circuit havingthe series of electromagnets arranged in multiple with referencethereto, and a manually-operable circuit-controller at each loom forsaidmain circuit.

17. In combination, a main electric circuit and a series of looms, eachloom having detector devices and unshipping appliances ineluding anelectromagnet, the respective electromagnets of the series of loomsbeing in branch circuits arranged in multiple with reference to the maincircuit,and all united with a common connection, two circuit-controllersfor each branch circuit arranged at opposite sides of the commonconnection,one of the said circuit-controllers being under the operativecontrol of the detector devices of the corresponding loom whereby theparticular loom in which a fault is discovered by the said detectordevices may be unshipped from any one of the looms of the series oflooms.

18. In combination, aseries of Warp-detectors, a feeler or vibrator,means to actuate the same, and a vibrator-stop operating to interruptthe action of the feeler or vibrator against a Warp-detector.

19. In a loom, in combination, a signal, a series of Warp-detectors, afeeler or vibrator, devices under control of said feeler or vibrator tooperate the said signal, means to operate the said feeler or vibrator,and a vibra-V tor-stop operating to interrupt the action of the feeleror vibrator against aWarp-detector after the signal has been operated.

20. In a loom, in combination, a series of Warp-detectors, a feeler orvibrator, means to actuate the same, a movable vibrator-stop, a latch tohold the same inoperative, and means to disengage the said latch afterthe feeler or vibrator has acted against a warpdetector.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY I. IIARRIMAN.

\Vitnesses:

J. FOSTER SEARLEs, CHAS. F. RANDALL.

